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Visit www.ppiindia.net. Refer technical notes on ALARM for detailed understanding of the parameters/terminologies
used for describing the Alarm parameters in this section.
The parameters required for configuring Alarm-1 and Alarm-2 are grouped on PAGE-11. The configuration includes selecting
the type of Alarm, setting the hysteresis value, enabling / disabling start-up alarm suppression, etc. Refer Table 5.1 for
parameter description & settings.
ALARM PARAMETERS
Table 5.1
Section 5
Parameter Description
Settings
(Default Value)
-999 to 999
(Default : 3)
ALARM-1 TYPE
Select the Alarm-1 activation type. Selecting ‘None’ will disable
the alarm and suppress all the related parameters for Alarm-1.
ALARM-1 SETPOINT
(Available for Process High or Process Low Alarm-1 Type)
Sets Alarm limit independent of control setpoint.
ALARM-1 DEVIATION BAND
(Available for Deviation Band Alarm-1 Type)
Sets positive or negative deviation (offset) limit from control
setpoint for High or Low Alarm-1 activation, respectively.
3 to 999
(Default : 3)
ALARM-1 WINDOW BAND
(Available for Window Band Alarm-1 Type)
Sets symmetrical positive and negative deviation (offset) limits
from control setpoint for both High and Low Alarm-1 activation.
1 to 999
(Default : 2)
ALARM-1 HYSTERESIS
Sets differential (dead) band between Alarm-1 switching ON and
OFF states.
(Default : None)
None
Process Low
Process High
Deviation Band
Window Band
End of Profile
Min. to Max. Range
specified for the
selected Input Type
(Default :
For Process Low : -200
For Process Low : 1300)
ALARM-1 LOGIC
Set to Yes to suppress Alarm-1 activation upon power-up or
process start-up.
(Default :
)
Direct
Reverse
Direct
User Manual
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